There was already a lot of focus on the player-designed cards, as the prize for the winner was that theirs was printed with their picture in the illustration
Its also one of the more mentally taxing mechanics for paper tournament play, since a revealed Companion puts the onus on both players to regularly verify that the condition is not violated (something that seems likely to become an accidental issue post-sideboarding in draft)
Slamming Atraxa on most boards wins you the game outright, and you just draw a bunch of cards to make up for it if your opponent can answer it
Polyphemus demonstrates quite a bit of emotional intelligence in the Odyssey .) I love how hes scarfing down sheep whole, the way you or I might attack a bag of chips, but hes also stashed some in his belt bag for later
1 I don't recall ever playing Cytoshape, Ethereal Ambush, Groundling Pouncer, Invert the Skies, Weaver of Currents, and Kumena, Tyrant of Orazca